Questions to the Mayor of London – answered at on 22 December 2021.
Elly Baker
Labour
Please provide details of the roads in London that form part of the Strategic Road Network (SRN). Please include the name of the road, the length of the road within London, which highway authority is responsible for the road and the percentage of the roads in London that form part of the SRN?
Sadiq Khan
Mayor of London
There are 20,454.3 kms of road within the Greater London Authority (GLA) boundary.
The London Strategic Road Network (SRN) accounts for 2.87% (587.7kms) of the total roads within the GLA boundary. It shares approximately 0.3% (2kms) of its roads with Transport for London Road Network and 97.3% (571.6 kms) with the Borough Principal Road Network.
The attached supporting documents (Annex A and B) give a full breakdown of the roads which make up the SRN, their total length (m) and the highway authority responsible.
These figures have been sourced using the Ordnance Survey Highways Master Map network (OSHMM) dataset, which give the most accurate reflection of the road network.
